99results about How to "Improve mechanical rigidity" patented technology

A semiconductor template having a top surface aligned along a (100) crystallographic orientation plane and an inverted pyramidal cavity defined by a plurality of walls aligned along a (111) crystallographic orientation plane. A method for manufacturing a semiconductor template by selectively removing silicon material from a silicon template to form a top surface aligned along a (100) crystallographic plane of the silicon template and a plurality of walls defining an inverted pyramidal cavity each aligned along a (111) crystallographic plane of the silicon template.

Vacuum microelectronic devices with carbon nanotube films, layers, ribbons and fabrics are provided. The present invention discloses microelectronic vacuum devices including triode structures that include three-terminals (an emitter, a grid and an anode), and also higher-order devices such as tetrodes and pentodes, all of which use carbon nanotubes to form various components of the devices. In certain embodiments, patterned portions of nanotube fabric may be used as grid / gate components, conductive traces, etc. Nanotube fabrics may be suspended or conformally disposed. In certain embodiments, methods for stiffening a nanotube fabric layer are used. Various methods for applying, selectively removing (e.g. etching), suspending, and stiffening vertically- and horizontally-disposed nanotube fabrics are disclosed, as are CMOS-compatible fabrication methods. In certain embodiments, nanotube fabric triodes provide high-speed, small-scale, low-power devices that can be employed in radiation-intensive applications.

In a three degrees of freedom parallel mechanism, a spindle head is carried by first and second movable support members to be movable along a Z-axis and to be pivotable along each of A and B-axes. The spindle head is jointed through three rods to drive sliders which are movable along three parallel linear guides secured stationarily. For jointing, there are employed spherical joints and universal joints. Kinematic parameters used in converting each command position of the movable body to target operational positions for three actuators of the Z, A and B-axes are compensated based on inversely converted command positions and inversely converted actually measured positions which have been gathered with the spindle head being located at positions of a suitable number, so that the kinematic parameters can be updated to those newest.

The shape of a locker provided in a locking assembly for a seat slide mechanism is modified into a cylindrical structure with a circular cross section so as to exhibit a higher mechanical rigidity as compared to a conventional plate type locker. Thereby, effectively preventing a half-locked condition. A reinforced channel structure, of a combined hook configuration, enables an upper reinforced channel and a lower reinforced channel to perform mutual locking against upward loads, thus effectively preventing damage of the rail assembly upon the exertion of a load of a three-point-type seat belt for the middle or second seat.

The invention relates to a process for making a copper connection with a copper connection element in an integrated circuit comprising a damascene structure, with the connection element being covered successively with an encapsulation layer and at least one layer of dielectric material with a very low dielectric constant. The process includes the steps of etching the layer of dielectric material until the encapsulation layer is reached in order to obtain a connection hole opposite the connection element. A protective layer is then formed on the walls of the connection hole, with the protective layer preventing contamination of the dielectric layer from diffusion of copper. The protective and encapsulation layers are then etched at the bottom of the connection hole in such a way as to reveal the connection element. The connection hole is then filled with copper.

Provided is a support member assembly suitable for use in a contact probe head comprising a support member formed with a plurality of holder holes for supporting conductive contact members in a mutually parallel relationship, and a reinforcing member integrally formed with the support member and extending in a part of the support member devoid of any holder holes. The reinforcing member increases the overall mechanical strength of the support member assembly, and prevents the thermal deformation of the support member. Because the holder holes are formed in the support member made of material suitable for forming holes, such as plastic material and ceramic material, the holder holes can be formed at high precision and at low cost.

A longitudinal guide for vehicle seats, including two elongate rails, each including a lower rail, an upper rail supported on the lower rail and displaceable in a longitudinal direction, and two bearing areas for guiding means, the bearing areas lying diagonally opposite to and biased against each other, each upper rail and lower rail having an L-shaped region, if viewed in profile, formed by a base leg and an L-leg protruding from the base leg substantially perpendicularly, and two end regions adjoining the L-shaped region, each end region of the upper or lower rail together with the end region of the associated lower or upper rail forming an embracing area by mutually hooking, the end regions of the upper rail forming the bearing areas with opposite portions of the associated lower rail, and a plurality of balls being supported in a first bearing area on the end region.

Disclosed is a soundproof material fabricated using recycled polyurethane foam from waste seats and a process of fabricating the same, and more particularly, a soundproof material fabricated by stacking a thermoplastic polymer on a sound absorbing material including recycled polyurethane foam from seats from end-of-life vehicles and a process of fabricating the same. Use of recycled resources provides an eco-friendly impact, reduces manufacturing costs for parts, and allows for improved mechanical rigidity and sound insulating properties. The soundproof material may be applied to various automobile parts such as package trays, luggage coverings, covering shelves, and isolation pads.

In a three degrees of freedom parallel mechanism, a spindle head is carried by first and second movable support members to be movable along a Z-axis and to be pivotable along each of A and B-axes. The spindle head is jointed through three rods to drive sliders which are movable along three parallel linear guides secured stationarily. For jointing, there are employed spherical joints and universal joints. Kinematic parameters used in converting each command position of the movable body to target operational positions for three actuators of the Z, A and B-axes are compensated based on inversely converted command positions and inversely converted actually measured positions which have been gathered with the spindle head being located at positions of a suitable number, so that the kinematic parameters can be updated to those newest.

A hollow cylindrical thermal shield for a tubular cryogenically cooled superconducting magnet, has a first axis, an inner cylindrical tube having an axis aligned with the first axis, an outer cylindrical tube of greater diameter than the diameter of the inner cylindrical tube, having an axis aligned with the first axis, and annular end pieces, joining the inner cylindrical tube and the outer cylindrical tube to form an enclosure. The hollow cylindrical thermal shield further has a cylindrical stiffener, extending axially at least part of the axial length of the inner cylindrical tube, the stiffener being joined at intervals to the inner cylindrical tube, thereby to improve the mechanical rigidity of the inner cylindrical tube.

A three-dimensional solar cell comprising a semiconductor substrate with an inverted pyramidal cavity, emitter metallization regions on ridges on the surface of the semiconductor substrate which define an opening of the inverted pyramidal cavity, and base metallization regions on a region which form the apex of the inverted pyramidal cavity. A method for fabricating a three-dimensional thin-film solar cell from an inverted pyramidal three-dimensional thin-film silicon substrate by doping ridges on the surface of the semiconductor substrate which define an opening of an inverted pyramidal cavity on the substrate to form an emitter region, and doping a region which forms the apex of the inverted pyramidal cavity to form a base region. Adding a surface passivation layer to the surface of the substrate. Selectively etching the passivation layer from the emitter region and base region. Then concurrently metallizing the emitter region and base region.

A three-dimensional thin-film semiconductor substrate having a plurality of ridges on the surface of the semiconductor substrate which define a base opening of an inverted pyramidal cavity and walls defining the inverted pyramidal cavity is provided. And a fabrication method for a 3-D TFSS by forming a porous silicon layer on a silicon template having a top surface aligned along a (100) crystallographic orientation plane of the silicon template and a plurality of walls each aligned along a (111) crystallographic orientation plane of the silicon template and forming an inverted pyramidal cavity. The porous silicon layer forms substantially conformal on the silicon template. Then forming a substantially conformal epitaxial silicon layer on the porous silicon layer and releasing the epitaxial silicon layer from the silicon template.

An X-ray analysis device (1) having an X-ray source (2) for illuminating a sample (6) with X-radiation (4), a sample support for receiving the sample (6) and a detector (12,14) for detecting the diffracted or scattered X-radiation or fluorescent X-radiation (4') emitted by the sample, wherein an X-ray optical construction element of semi-conductor material having a plurality of channels which are essentially transparent to X-radiation (4,4') is provided in the path of rays between the X-ray source (2) and the detector (12,14), is characterized in that the X-ray optical construction element comprises a semi-conductor wafer (20;30a;30b;40;50) into which micropores (21;31;41) are etched which extend essentially in parallel in the direction of the rays and have diameters of 0.1 to 100 .mu.m, preferably 0.5 and 20 .mu.m. Such X-ray optical construction elements are, on the one hand, not poisonous, and on the other hand particularly transparent for X-rays, wherein a relatively high mechanical rigidity can be achieved also with large openings and very short construction lengths and thus also a particularly long service life and high pressure stability and density.

A semiconductor template having a top surface aligned along a (100) crystallographic orientation plane and an inverted pyramidal cavity defined by a plurality of walls aligned along a (111) crystallographic orientation plane. A method for manufacturing a semiconductor template by selectively removing silicon material from a silicon template to form a top surface aligned along a (100) crystallographic plane of the silicon template and a plurality of walls defining an inverted pyramidal cavity each aligned along a (111) crystallographic plane of the silicon template.

The present invention pertains to an electromechanical actuator controlling a valve of an internal combustion engine by means of a first magnetic field, generated in a variable manner by an electromagnet, and a second magnetic field, generated by at least one magnet associated with the electromagnet. According to the present invention, the actuator is characterized in that it comprises at least one connecting part forming a magnetic circuit facilitating the passage of the flux generated by the electromagnet for part of the field generated by the magnet, the connecting part being magnetically saturated by the partial field of the magnet.

The invention relates to a storage device (1) for the storing and / or transporting of nuclear fuel assemblies, including a plurality of adjacent housings each having a lateral wall and being able to receive a nuclear fuel assembly, the lateral walls being realised at least in part using stacking and intercrossing slotted structural assemblies (6a, 6b), each structural assembly including at least one plate (22) realised in a first material comprising aluminium. According to the invention, each structural assembly (6a, 6b) further includes a tubular cross-section element (20) inside of which is located said at least one plate (22), this tubular cross-section element (20) being realised in a second material selected from steels and titanium and alloys thereof.

A centrifugal blower impeller for a vehicle heating and ventilation system has a central hub, a peripheral crown having a set of vanes for drawing the air axially through the crown, to deliver the air radially towards the outside, and a set of arms, spaced apart at regular intervals and joining the hub to the crown. This set of arms defines a generally concave bowl-shaped envelope, with the arms being joined to the hub in the center of the bowl and with the crown at its periphery. At least some of the arms have reinforcing ribs close to the junction between the arm and the hub. Each rib lies in an axial plane and is on the side of the arm corresponding to the concavity of the bowl.

A tail structure for an aircraft or spacecraft, which adjoins a fuselage section of the aircraft or spacecraft, includes a support construction for supporting at least one craft component, and a bulkhead unit intended for the pressure-tight sealing of the fuselage section and able to be coupled both to the support construction and to the fuselage section so as to form a force flow path between the at least one craft component and the fuselage section.

A flat panel display apparatus includes: a first substrate, a second substrate opposite the first substrate and including a display region in which a plurality of pixels are formed, and a sealing member between the first substrate and the second substrate; the sealing member bonds the first substrate and the second substrate to each other. The sealing member overlaps at least a part of outermost pixels of the display region.

Provided is a support member assembly suitable for use in a contact probe head comprising a support member formed with a plurality of holder holes for supporting conductive contact members in a mutually parallel relationship, and a reinforcing member integrally formed with the support member and extending in a part of the support member devoid of any holder holes. The reinforcing member increases the overall mechanical strength of the support member assembly, and prevents the thermal deformation of the support member. Because the holder holes are formed in the support member made of material suitable for forming holes, such as plastic material, the holder holes can be formed at high precision and at low cost.

An automatic lathe is provided which is capable of rapidly and easily switching between machining of a material with a guide bush and machining of the material without the guide bush. The automatic lathe has a head stock (6) and a guide bush support table (1). The head stock (6) is provided with a spindle drive motor (8). The guide bush support table (1) is provided with a guide bush rotating motor (11). There are provided: support table fixing means (15) for positioning and fixing the guide bush support table (1); a guide member (12) rotatably installed on the guide bush support table (1) and regulated so as not to move forward and backward and having a through-hole formed for a spindle (3) to be inserted therein; a guide bush (4) detachably fitted to the tip of the guide member (12); and spindle fixing means (37) for positioning and fixing the spindle (3) on the guide bush support table (1) at a specified position when the guide bush (4) is removed from the guide member (12).

An automatic lathe is provided which is capable of rapidly and easily switching between machining of a material with a guide bush and machining of the material without the guide bush. The automatic lathe has a guide bush support table (1) disposed closer to a tip side of a spindle (3) than a head stock (6); support table fixing means (15) for fixing the guide bush support table (1); a guide member (12) rotatably installed on the guide bush support table (1) so as not to move forward and backward; a guide bush (4) detachably fitted to the tip of the guide member (12); driving means (11) for rotating the guide bush (4); rotation transmission means (14a) and (31) for transmitting the rotation of the guide member (12) to the spindle (3); spindle moving means (7) for moving the spindle (3) forward and backward within the guide member (12); and spindle fixing means (17), (36) and (38) for positioning and fixing the spindle (3) at a specified position on the guide bush support table (1) when the guide bush (4) is removed from the guide member (12).

A tail structure for an aircraft or spacecraft, which adjoins a fuselage section of the aircraft or spacecraft, includes a support construction for supporting at least one craft component, and a bulkhead unit intended for the pressure-tight sealing of the fuselage section and able to be coupled both to the support construction and to the fuselage section so as to form a force flow path between the at least one craft component and the fuselage section.

The shape of a locker provided in a locking assembly for a seat slide mechanism is modified into a cylindrical structure with a circular cross section so as to exhibit a higher mechanical rigidity as compared to a conventional plate type locker. Thereby, effectively preventing a half-locked condition. A reinforced channel structure, of a combined hook configuration, enables an upper reinforced channel and a lower reinforced channel to perform mutual locking against upward loads, thus effectively preventing damage of the rail assembly upon the exertion of a load of a three-point-type seat belt for the middle or second seat.

A method is described for manufacturing a micromechanical component. The method includes providing a first substrate, forming a first connecting structure on the first substrate, and forming a microstructure on the first substrate after forming the first connecting structure. The microstructure has at least one movable functional element. The method further includes providing a second substrate having a second connecting structure, and joining the first and second substrates by carrying out a bonding process, the first and second connecting structures being joined to form a common connecting structure, and a sealed cavity being formed in the region of the microstructure. The method provides that the first connecting structure takes the form of a buried connecting structure extending up to an upper surface of the first substrate. Also described is a related micromechanical component.

A telecommunications apparatus that has a substantially box-shaped subrack having a back wiring board mounting a connector and a plurality of shell-type plug-in units inserted in the subrack so that a connector of each of the plug-in units is connected to the connector of the subrack, further includes a flexible, electrically conductive seal member elastically deformedly disposed between a lateral surface of the plug-in unit inserted into the subrack and an interior portion of the subrack so as to enclose both the plug-in unit connector.

The dimensions of the fitting part of an actuator are to be dramatically reduced while enabling control items such as a driving motor and a position sensor of standard designs to be fitted around outside the actuator. To achieve this purpose, the actuator is provided with a trunnion type universal joint including: a fitting shaft, holding members and a rotary block having a nut arranged in it; a ball screw that is screwed into the nut of the universal joint and, being operationally linked to a driving power source, can move the nut back and forth; and a ball screw guide that is provided on the universal joint and guides the back-and-forth moving direction of the ball screw.

A high pressure and temperature, hermetically sealed bulkhead connector with pin and socket contacts for use in logging tools is described. The bulkhead connector comprises(a) one or more contact(s) placed within one or more channels wherein the channels provide a clearance path between contact(s) and bulkhead body and travel at least a partial longitudinal distance between proximal and distal ends. The contact(s) reside in the channel(s) and include at least; an optional movement limiter section, one central elongated section, and one fixed section where the contact(s) is attached to the bulkhead body at the distal end. The body correctly positions respective ends of the contact so that the body secures contact(s) to be parallel to each other and the contact(s) have terminal ends for connection. This arrangement provides at least one pivotable, pliable, free floating contact extending away from the fixed distal end of the bulkhead body.

The present invention relates to metallic gas sorbents on the basis of solid solutions of lithium in a metal of the group consisting of Ag, Al, Au, Co, and Cu, which have unique mechanical properties suitable for the production of lithium alloys in the form of ductile and balls, wires, strips, and foils.